1956 P Silver US Proof Set in Original Packaging from US Mint Proof. 7.5 x 3 x 0.5 inches. 1956 Silver Proof set. Comes in Packaging from the US Mint. This proof set comes in the original packaging from the mint. Coins are proof condition. All proof sets are pre owned and have slight blemishes in the coins and packaging. We offer the best prices around on high quality products. Our E-store includes media such as books, movies, music and games while offering electronics, toys, sporting apparel, clothing, tools, general home, garden items and more. We are always working hard to ensure your package arrives as soon as possible. We do not accept P. Please provide a physical address. We try our very best to make sure every customer is completely satisfied. If there’s a problem, message us! We’re happy to help.